Table 1

Reads assigned to bacterial and archaeal taxa at the phylum-level in MEGAN

Domain

Phyla

0-4 cm metagenome

10-15 cm metagenome

Significant

Reads assigned

Percent of reads

Reads assigned

Percent of reads

difference1


Bacteria

Proteobacteria

82318

31.07

30020

15.45

***

Bacteria

- Gammaproteobacteria2

27876

10.52

6442

3.31

***

Bacteria

- Deltaproteobacteria2

13777

5.20

12015

6.18

***

Bacteria

- Alphaproteobacteria2

8355

3.15

2416

1.24

***

Bacteria

- Epsilonproteobacteria2

5198

1.96

877

0.45

***

Bacteria

- Betaproteobacteria2

3045

1.15

1067

0.55

***

Bacteria

- Zetaproteobacteria2

282

0.11

77

0.04

***

Bacteria

Bacteroidetes

16782

6.34

6073

3.12

***

Bacteria

Planctomycetes

3657

1.38

2447

1.26

Bacteria

Firmicutes

3620

1.37

4445

2.29

***

Archaea

Euryarchaeota

1353

0.51

6772

3.48

***

Archaea

Archaeal environmental samples

404

0.15

25317

13.03

***


The table presents number of reads assigned at the phylum level in MEGAN. For the phylum Proteobacteria, subsets of reads assigned proteobacterial classes are shown. All percentages are given as the percentage of total reads for each filtered metagenome. (Only phyla with at least 1% of the total unique reads in one or both samples are included.)

1 *** indicates 99% confidence interval

2 Reads assigned to Proteobacteria at the class level in MEGAN

HĂ„velsrud et al. BMC Microbiology 2011 11:221   doi:10.1186/1471-2180-11-221

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